After installing an RC 2.5 inch lift and 1/2 inch lift boomerang shackles (gave me 3.5 total), I was getting drive line vibrations across the board. I put in a 1" TC drop and that helped a little. I replaced my transmission mount and that helped a little more so I put the T-case at 1/4" drop. At this point I'm getting vibrations that kick in at about 30mph and drop off at about 40mph.
I checked my rear U-joints this morning and there's no play in the one closest to the t-case, but the one closest to the rear dif has some very noticeable play in it.
I'm wondering if it would be worthwhile to replace the U-joint with all the play in it or if I'd be better off just calling Adams and ordering the SYE kit.
Has anyone had a loose U-Joint cause drive line vibration like this?